What a cool idea, hadnt heard of this sort of thing. Downloaded it this morning, piece of cake to set up, i sent money to my wife, also with barclays. Bit fiddly for her to set up, needs to verify mobile number, then you have to check your bank statements for a transaction (quickest done online). Took me 5 mins to set her up with it, but im quick on PC, a non pc literate person and it will take forever.
I love the concept of it. And its free, no bank charges (for personal customers).